The company
Mammoth Energy Services, Inc.
TUSK · Nasdaq
TUSK stood above a rising 150-day average in 25 of the last 52 weekly readings, and has been out of that trend for the last 3 weeks. It is 6.8% below that average now. Oilfield Services & Drilling: 21% of its 34 stocks in an uptrend (−18 points in four weeks); Energy: 36% (−8 points in four weeks).
Statistics
- Rotation
- Not moving yet
- Weeks in an uptrend
- out for 3
- Industry in uptrend
- 21% -18 in 4 wk
- Insider buys, 12 months
- $21.0M
- Insider sales, 12 months
- $0
- Officials’ trades on record
- 0
- Institutions holding
- 89 (+5)
In the rotation
Each square a week: lit when it closed above a rising 150-day average. 25 of 52 weeks.
Oilfield services: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks. Energy: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks.
Money in and out
Open-market buys above the line and sales below, in dollars.
Congress and officials
No member of Congress or official has disclosed a trade in it.
Insiders
| Who | Did | Shares | Traded |
|---|---|---|---|
| Mark Lawrence PlaumannDirector | bought | 5,000at $3.00 | 16 Sep 2026filed 17 Sep 2026 |
| Wexford Capital LpChief Business Officer | bought | 4,019,574at $2.60 | 17 Jun 2026filed 22 Jun 2026 |
| Arthur H. AmronDirector | bought | 2,000at $3.28 | 12 Jun 2026filed 15 Jun 2026 |
| Arthur H. AmronDirector | bought | 2,500at $3.22 | 11 Jun 2026filed 15 Jun 2026 |
| Arthur H. AmronDirector | bought | 3,000at $3.25 | 28 May 2026filed 28 May 2026 |
| Arthur H. AmronDirector | bought | 2,500at $3.24 | 26 May 2026filed 28 May 2026 |
Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.
Institutions
Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.
| Manager | Shares | Change |
|---|---|---|
| WEXFORD CAPITAL LPreduced · filed 14 Aug 2026 | 12,071,823$39.2M | -9,996,389−45.3% |
| ADAGE CAPITAL PARTNERS GP, L.L.C.unchanged · filed 14 Aug 2026 | 4,575,000$14.9M | 00.0% |
| VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026 | 1,059,603$3.4M | +240,483+29.4% |
| Peapod Lane Capital LLCadded · filed 27 Jul 2026 | 807,804$2.6M | +207,999+34.7% |
| DIMENSIONAL FUND ADVISORS LPadded · filed 11 Aug 2026 | 691,667$2.2M | +5,468+0.8% |
| JANE STREET GROUP, LLCadded · filed 14 Aug 2026 | 506,662$1.6M | +483,808+2117.0% |
| CITADEL ADVISORS LLCadded · filed 14 Aug 2026 | 452,163$1.5M | +120,796+36.5% |
| BlackRock, Inc.reduced · filed 7 Aug 2026 | 407,976$1.3M | -1,046,863−72.0% |
| MARSHALL WACE, LLPnew · filed 13 Aug 2026 | 395,583$1.3M | +395,583 |
| Johns Hopkins Universitynew · filed 14 Aug 2026 | 387,359$1.3M | +387,359 |
News
No headline names it lately.
Everyone who traded it
Same industry
Government contracts
No federal award is tied to it.
From its SEC filings
Analyst forecasts
No analyst forecasts yet.